Also See Allison, IA: ZIP Codes & Maps
The City of Allison had a population of 937 as of July 1, 2025.
The primary coordinate point for Allison is located at latitude 42.7528 and longitude -92.7952 in Butler County. The formal boundaries for the City of Allison encompass a land area of 2.93 sq. miles and a water area of 0 sq. miles. Butler County is in the Central time zone (GMT -6).
The City of Allison has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
The City of Allison is located within Township of West Point, a minor civil division (MCD) of Butler County.
POPULATION | |
|---|---|
| Total Population | 937 (100%) |
| Population in Households | 908 (96.9%) |
| Population in Families | 706 (75.3%) |
| Population in Group Quarters1 | 29 ( 3.1%) |
| Population Density | 320 |
| Diversity Index2 | 12 |
INCOME | |
| Median Household Income | $72,049 |
| Average Household Income | $91,677 |
| % of Income for Mortgage4 | 13% |
| Per Capita Income | $41,500 |
| Wealth Index5 | 70 |
| Socioeconomic Status Index6 | Moderate (55.1) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 465 (100%) |
| Owner Occupied HU | 349 (75.1%) |
| Renter Occupied HU | 74 (15.9%) |
| Vacant Housing Units | 42 ( 9.0%) |
| Median Home Value | $153,779 |
| Average Home Value | $181,232 |
| Housing Affordability Index3 | 155 |
HOUSEHOLDS | |
| Total Households | 423 |
| Average Household Size | 2.15 |
| Family Households | 251 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.58% | -0.26% |
| Households | -0.13% | -0.38% |
| Families | 0.32% | |
| Median Household Income | 1.78% | |
| Per Capita Income | 1.50% | |
| Owner Occupied HU | -0.87% |
The table below compares Allison to the other 1,026 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 307 | 70th |
| Population Density | # 735 | 28th |
| Median Household Income | # 605 | 41st |
| Housing Affordability Index | # 830 | 81st |
| Per Capita Income | # 474 | 54th |
| Diversity Index | # 750 | 27th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.
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